Quote:
Originally Posted by SactoJim
I've always heard that about 10 psi per 1000 rpm is fine and a small block will live all day long on minimal oil pressure (less than 10 psi) at idle.
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This is what I have been taught as well. If you are running at 5000rpm you should have 50psi. If you are idling at 800rpm you need 8 psi. I had a 70 El Camino that had those readings. The bearing were obviously worn but it ran fine. The more steady the oil pressure the better, it would be ideal if you had 50 all the time, but if you have 60 cold and 25 when it is hot I would say it is a good motor.